You should be fine as long as you match your tire size with proper gearing. If you go for either the 33" or 34" tires, the cheapest route would be to search www.car-part.com and your local junkyards for some factory 4.88 ratio 3rd members. You can also throw in a lockrite for around $250 like someone else mentioned.

'87 4-Runner--DD/wheeler, 4.3 swap coming soon
'89 Supra--E85 powered 2jz NA-T Swap, 533rwhp 497ft-lbs
'89 Festiva, turboed BP swap powered by megasquirt